Hoerbiger Ventilwerke Aktiengesellschaft

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5833209 Device and method for influencing the periodic stroke movement of the closing element of a valveJul 28, 95Nov 10, 98[F16K]
5390700 Automatic valveDec 22, 93Feb 21, 95[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5988985 Method and apparatus for controlling compressor valves in a piston compressorExpiredMay 06, 97Nov 23, 99[F04B]
5957031 Hydraulic cylinderExpiredJul 07, 97Sep 28, 99[F15B]
5678603 Plate valve, particularly for piston compressorsExpiredJul 07, 95Oct 21, 97[F16K]
5634492 Compressor valve lifterExpiredMay 05, 95Jun 03, 97[F16K]
5584673 Device for reducing the pressure of a compressor in the idling and shutdown modeExpiredMar 28, 95Dec 17, 96[F04B]
5533873 Induction regulator valve for rotary compressorsExpiredJul 28, 95Jul 09, 96[F04B]
5411375 Intake control valveExpiredJun 01, 93May 02, 95[F04B]
5287883 Valve, in particular for compressorsExpiredOct 02, 92Feb 22, 94[F16K]
5249595 Valve, in particular for a piston-type compressorExpiredAug 07, 91Oct 05, 93[F16K]
5244357 Method for continuous control of delivery rate of reciprocating compressors and device for carrying out the methodExpiredOct 14, 92Sep 14, 93[F04B]
5222516 Valve seat plate for piston compressorExpiredDec 31, 91Jun 29, 93[F16K]
5052434 Valve, especially for compressorsExpiredSep 24, 90Oct 01, 91[F16K]
4924906 Ring valveExpiredMay 25, 89May 15, 90[F16K]
4871299 Screw compressor unit including a centrifugal clutchExpiredFeb 04, 88Oct 03, 89[F04B]
4869289 Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attachedExpiredOct 06, 88Sep 26, 89[F16K]
4869291 Compressor plate valveExpiredOct 26, 88Sep 26, 89[F16K]
4854341 Plate valveExpiredJun 29, 88Aug 08, 89[F16K]
4799507 Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attachedExpiredApr 08, 87Jan 24, 89[F16K]
4755110 Piston-type compressorExpiredJul 17, 87Jul 05, 88[F04B]
4700610 Cylinder tube strain measurement feedback for piston position controlExpiredSep 16, 85Oct 20, 87[F15B]

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